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China Rebar Machinery China Rebar Machinery
GWH50CG

Rebar Arc Bending Machine

Heavy-duty rebar arc bending machine for bars up to 50 mm, ideal for large-radius arc bending on site.

Model: GWH50CG

Key features at a glance

Bar range 50mm
Power 5KW+6KW
Output 30 rpm—43 rpm
Power supply 380V / 50HZ
Max rebar diameter for arc bending 50mm
Bending arc diameter R500 / unlimited
Drive wheel speed 30 rpm—43 rpm
Drive wheel diameter 270 mm
Driven wheel diameter 270mm

Technical Specifications →

Also known as

This machine is often called by these names or searched with these phrases.

gwh50cg arc bending machine gwh50cg rebar arch bender 50mm arc bending machine gwh50cg arc bender

GWH50CG Rebar Arc Bending Machine — Heavy-Duty Arc Bending up to 50 mm

The GWH50CG Rebar Arc Bending Machine is a heavy-duty unit built for large-radius arc bending of reinforcing bar, including on-site work where long, smooth curves are required. It is manufactured by Gongda (China Rebar Machinery, chinarebarmachinery.com) in Hefei, Anhui, China. The factory is rooted in the electromechanical works of Hefei University of Technology, and Gongda exports rebar processing machines worldwide, including Russia, Spain, Latin America, the Middle East, Southeast Asia and Africa.

Key Specifications Explained

  • Maximum rebar diameter: 50 mm — the upper capacity limit for arc bending on this model.
  • Arc bending diameter: R500 and above / unlimited — suited to large-radius curves rather than tight bends.
  • Drive wheel speed: 30–43 rpm — two working speeds for controlled feed through the bending rolls.
  • Drive wheel: 270 mm diameter, 100 mm height; driven wheel: 270 mm diameter, 105 mm height — matched roll geometry for stable bar guidance.
  • Motor model: YD132M-4/6, power: 5 kW + 6 kW, speed: 1150/1650 rpm — two-speed drive matched to the 30–43 rpm roll output.
  • Voltage/frequency: 380 V / 50 Hz — standard industrial three-phase supply.
  • Dimensions: 1020 × 1000 × 1060 mm — compact footprint relative to its 50 mm capacity.

Applications

The GWH50CG is intended for large-radius arc bending of rebar up to 50 mm. Typical uses include curved reinforcement for tunnels, arches, bridge and viaduct elements, ring beams, circular columns, dome and shell structures, and architectural curved concrete work. Because it is built as a site-duty machine, it suits contractors who need to produce long, consistent arcs at the project location rather than transporting pre-bent cages. It handles the heavy bar sizes that smaller benders cannot form into smooth arcs.

Why Buy This Model from Gongda

  • 50 mm arc capacity with R500-and-above radius capability — a genuine heavy-duty arc bender, not a converted standard bender.
  • Two-speed drive (30–43 rpm roll speed, 5 kW + 6 kW motor) gives operators control across different bar sizes and radii.
  • Engineering heritage — production rooted in the electromechanical works of Hefei University of Technology.
  • Export experience across Russia, Spain, Latin America, the Middle East, Southeast Asia and Africa.
  • Compact dimensions (1020 × 1000 × 1060 mm) simplify container loading and site placement.

Shipping, Certification & Support

Gongda ships from FOB Shanghai, Ningbo or Qingdao. EAC certification is available for buyers in EAC markets. Every machine carries a 12-month warranty with spare parts support. Sales and technical communication is available in English, Russian, Spanish, Arabic, French, Portuguese, German and Indonesian. For specifications, pricing or a quotation on the GWH50CG, contact Gongda via WhatsApp +86 193 9277 7259 or visit chinarebarmachinery.com.

Technical Specifications — GWH50CG

Max rebar diameter for arc bending 50mm
Bending arc diameter R500 / unlimited
Drive wheel speed 30 rpm—43 rpm
Drive wheel diameter 270 mm
Driven wheel diameter 270mm
Drive wheel height 100mm
Driven wheel height 105mm
Motor model YD132M-4/6
Motor power 5KW+6KW
Motor speed 1150/1650 rpm
Voltage / frequency 380V / 50HZ
Dimensions 1020 × 1000 × 1060 mm

Compare with related models

Model GDWHWQ-36 GDLWZX-32 GDWQ4-15A ZD-6M-25 SKDZWH-36 GWH50CGBest seller GJZD6-65CZ GJZD6-50CZ GW25 GWH50CZN ZD-6M-20 GDPMW-60
Bar range — Ø10mm-Ø32mm Grade III deformed bar / 4-12 — 40mm 50mm A3 steel / 65mm A3 steel / 50mm 25mm 50mm — —
Power — 4.4KW*2 15KW+5.5KW 7.5KW 4 kW + 2.5 kW (CNC servo) 5KW+6KW 8KW 4.5KW 3KW 11KW 8KW 22kW
Output 48-62 °/S — 100m/min — Servo control 30 rpm—43 rpm 4.5 / 7 rpm 4.5 / 7 rpm 35 rpm 0—43 rpm — 72°/S
Power supply — — — — 380V / 50HZ 380V / 50HZ 380V / 50HZ 380V / 50HZ 380V / 50HZ 380V / 0-50HZ — 380V 50Hz

Where this machine works

High-rise construction

CNC bending and shearing lines for beams, columns and slab reinforcement.

Precast & prefab plants

Five-head stirrup and forming machines for mass production of cage components.

Bridges & tunnels

Arc benders for tunnel lining, bridge reinforcement and large-radius bends.

Rebar fabricators

Straightening, cutting and thread rolling for custom fabrication shops.

Quality, export packing & after-sales

1

Run-test

Every machine is run-tested under load and checked against its specification sheet before packing.

2

Export crating

Anti-rust treatment, film wrapping and reinforced wooden crating protect the machine for sea freight.

3

Shipping methods

Standard container — small and medium machines (cutters, stirrup machines, welders).

4

After-sales support

Documentation, remote guidance via video or WhatsApp, and spare parts supply after delivery.

Buying questions

How do I choose between a rebar bending machine and a stirrup bending machine?

A rebar bending machine bends straight bars into angles (90°/135° etc.). A stirrup bending machine (single-head or five-head CNC) forms closed stirrups/ties from coiled or straight bar. If your work is stirrups and ties, choose a stirrup machine; if you bend straight bars for beams and columns, a CNC bending machine.

What is the capacity of a CNC five-head stirrup machine?

A five-head machine forms multiple stirrups in one cycle - e.g. ZD-6M-25 processes Ø8x10 bars, Ø10x7, Ø12x5 per stroke at 5-8 seconds per cycle, with ±2 mm length accuracy and ±1° angle accuracy.

Inquire About This Machine

Rebar Arc Bending Machine — export markets

We ship the GWH50CG to 20 markets. Choose your destination port:

Nigeria Kenya Ethiopia Tanzania Ghana Philippines Indonesia Saudi Arabia UAE Egypt South Africa Pakistan Bangladesh Vietnam Thailand Malaysia Brazil Mexico Peru Russia